Add minifier

Gemfile

@@ -12,6 +12,7 @@ group :jekyll_plugins do
   gem 'jekyll-feed'
   gem 'jekyll-seo-tag'
   gem 'jekyll-admin'
+  gem 'jekyll-minifier'
 end
 
 # gem "rails"

Gemfile.lock

@@ -6,6 +6,7 @@ GEM
     backports (3.18.2)
     colorator (1.1.0)
     concurrent-ruby (1.1.7)
+    cssminify2 (2.0.1)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
@@ -13,6 +14,7 @@ GEM
     execjs (2.7.0)
     ffi (1.13.1)
     forwardable-extended (2.6.0)
+    htmlcompressor (0.4.0)
     http_parser.rb (0.6.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
@@ -40,6 +42,12 @@ GEM
     jekyll-katex (1.0.0)
       execjs (~> 2.7)
       jekyll (>= 3.6, < 5.0)
+    jekyll-minifier (0.1.10)
+      cssminify2 (~> 2.0)
+      htmlcompressor (~> 0.4)
+      jekyll (>= 3.5)
+      json-minify (~> 0.0.3)
+      uglifier (~> 4.1)
     jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-seo-tag (2.6.1)
@@ -48,6 +56,9 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
+    json (2.3.1)
+    json-minify (0.0.3)
+      json (> 0)
     kramdown (2.3.0)
       rexml
     kramdown-parser-gfm (1.1.0)
@@ -88,6 +99,8 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     tilt (2.0.10)
+    uglifier (4.2.0)
+      execjs (>= 0.3.0, < 3)
     unicode-display_width (1.7.0)
 
 PLATFORMS
@@ -98,6 +111,7 @@ DEPENDENCIES
   jekyll-admin
   jekyll-feed
   jekyll-katex
+  jekyll-minifier
   jekyll-seo-tag
   jekyll-sitemap
 

_config.yml

@@ -1,4 +1,5 @@
 plugins:
   - jekyll-katex
+  - jekyll-minifier
 
 highlihger: rouge